Commit a79f929d authored by Alexander Larsson's avatar Alexander Larsson

Add support for enabling only native windows

Some applications make weird assumtions on Gtk+ that do not work anymore
with the new client-side windows support. For instance SWT/Eclipse reorders
the stacking order of the X windows directly without telling gdk this,
which breaks gdk drawing as gdk now relies on knowing the stacking order
for window clipping.

This introduces a GDK_NATIVE_WINDOWS environment variable, which if set
causes Gtk+ to always use native windows. Its more compatible with
pre-csw Gtk+ behaviour if you do weird X-specific hacks, although it does
limit the size of GdkWindows to 65535x65535.
parent deda8b97
......@@ -206,6 +206,9 @@ gdk_pre_parse_libgtk_only (void)
}
#endif /* G_ENABLE_DEBUG */
if (getenv("GDK_NATIVE_WINDOWS"))
_gdk_native_windows = TRUE;
g_type_init ();
/* Do any setup particular to the windowing system
......
......@@ -837,6 +837,10 @@ synthesize_crossing_events (GdkDisplay *display,
GdkModifierType state;
int x, y;
/* We use the native crossing events if all native */
if (_gdk_native_windows)
return;
if (src_window)
src_toplevel = gdk_window_get_toplevel (src_window);
else
......
......@@ -39,6 +39,7 @@ GList *_gdk_default_filters = NULL;
gchar *_gdk_display_name = NULL;
gint _gdk_screen_number = -1;
gchar *_gdk_display_arg_name = NULL;
gboolean _gdk_native_windows = FALSE;
GSList *_gdk_displays = NULL;
......
......@@ -107,6 +107,7 @@ extern gint _gdk_error_code;
extern gint _gdk_error_warnings;
extern guint _gdk_debug_flags;
extern gboolean _gdk_native_windows;
#ifdef G_ENABLE_DEBUG
......
......@@ -866,7 +866,13 @@ recompute_visible_regions_internal (GdkWindowObject *private,
{
gdk_region_intersect (new_clip, private->parent->clip_region);
/* Remove all overlapping children from parent */
/* Remove all overlapping children from parent.
* Unless we're all native, because then we don't need to take
* siblings into account since X does that clipping for us.
* This makes things like SWT that modify the raw X stacking
* order without GDKs knowledge work.
*/
if (!_gdk_native_windows)
remove_child_area (private->parent, private, FALSE, new_clip);
}
......@@ -1093,8 +1099,11 @@ find_native_sibling_above (GdkWindowObject *parent,
static GdkEventMask
get_native_event_mask (GdkWindowObject *private)
{
if (private->window_type != GDK_WINDOW_ROOT &&
private->window_type != GDK_WINDOW_FOREIGN)
if (_gdk_native_windows ||
private->window_type == GDK_WINDOW_ROOT ||
private->window_type == GDK_WINDOW_FOREIGN)
return private->event_mask;
else
{
return
/* We need thse for all native window so we can emulate
......@@ -1116,13 +1125,13 @@ get_native_event_mask (GdkWindowObject *private)
GDK_BUTTON2_MOTION_MASK |
GDK_BUTTON3_MOTION_MASK));
}
else
return private->event_mask;
}
/* Puts the native window in the right order wrt the other native windows
in the hierarchy, given the position it has in the client side data.
This is useful if some operation changed the stacking order. */
* in the hierarchy, given the position it has in the client side data.
* This is useful if some operation changed the stacking order.
* This calls assumes the native window is now topmost in its native parent.
*/
static void
sync_native_window_stack_position (GdkWindow *window)
{
......@@ -1187,6 +1196,13 @@ gdk_window_new (GdkWindow *parent,
if (GDK_WINDOW_DESTROYED (parent))
return NULL;
if (attributes->window_type == GDK_WINDOW_OFFSCREEN &&
_gdk_native_windows)
{
g_warning ("Offscreen windows not supported with native-windows gdk");
return NULL;
}
window = g_object_new (GDK_TYPE_WINDOW, NULL);
private = (GdkWindowObject *) window;
......@@ -1288,7 +1304,7 @@ gdk_window_new (GdkWindow *parent,
if (private->parent)
private->parent->children = g_list_prepend (private->parent->children, window);
native = FALSE; /* Default */
native = _gdk_native_windows; /* Default */
if (private->parent->window_type == GDK_WINDOW_ROOT)
native = TRUE; /* Always use native windows for toplevels */
else if (!private->input_only &&
......@@ -1313,6 +1329,7 @@ gdk_window_new (GdkWindow *parent,
/* This will put the native window topmost in the native parent, which may
* be wrong wrt other native windows in the non-native hierarchy, so restack */
if (!_gdk_window_has_impl (real_parent))
sync_native_window_stack_position (window);
}
else
......@@ -1432,7 +1449,7 @@ gdk_window_reparent (GdkWindow *window,
GdkWindowObject *new_parent_private;
GdkWindowObject *old_parent;
GdkScreen *screen;
gboolean show, was_toplevel, was_mapped;
gboolean show, was_mapped;
gboolean do_reparent_to_impl;
g_return_if_fail (GDK_IS_WINDOW (window));
......@@ -1476,7 +1493,6 @@ gdk_window_reparent (GdkWindow *window,
private->redirect = NULL;
}
was_toplevel = private->parent == NULL;
was_mapped = GDK_WINDOW_IS_MAPPED (window);
show = FALSE;
......@@ -1576,6 +1592,7 @@ gdk_window_reparent (GdkWindow *window,
/* The reparent will have put the native window topmost in the native parent,
* which may be wrong wrt other native windows in the non-native hierarchy,
* so restack */
if (!gdk_window_has_impl (new_parent_private))
sync_native_window_stack_position (window);
}
......@@ -1645,8 +1662,9 @@ gdk_window_ensure_native (GdkWindow *window)
change_impl (private, private, new_impl);
/* Native window creation will put the native window topmost in the
* native parent, which may be wrong wrt other native windows in the
* non-native hierarchy, so restack */
* native parent, which may be wrong wrt the position of the previous
* non-native window wrt to the other non-native children, so correct this.
*/
above = find_native_sibling_above (private->parent, private);
if (above)
{
......@@ -2361,6 +2379,9 @@ gdk_window_begin_implicit_paint (GdkWindow *window, GdkRectangle *rect)
g_assert (gdk_window_has_impl (private));
if (_gdk_native_windows)
return FALSE; /* No need for implicit paints since we can't merge draws anyway */
if (GDK_IS_PAINTABLE (private->impl))
return FALSE; /* Implementation does double buffering */
......@@ -3263,8 +3284,8 @@ start_draw_helper (GdkDrawable *drawable,
guarantee ordering. */
gdk_window_flush ((GdkWindow *)drawable);
/* Don't clip when drawing to root */
if (private->window_type != GDK_WINDOW_ROOT)
/* Don't clip when drawing to root or all native */
if (!_gdk_native_windows && private->window_type != GDK_WINDOW_ROOT)
{
if (_gdk_gc_get_subwindow (gc) == GDK_CLIP_BY_CHILDREN)
clip = private->clip_region_with_children;
......@@ -5928,7 +5949,13 @@ gdk_window_raise_internal (GdkWindow *window)
/* Just do native raise for toplevels */
if (private->parent == NULL ||
private->parent->window_type == GDK_WINDOW_ROOT)
private->parent->window_type == GDK_WINDOW_ROOT ||
/* The restack_under codepath should work correctly even if the parent
is native, but it relies on the order of ->children to be correct,
and some apps like SWT reorder the x windows without gdks knowledge,
so we use raise directly in order to make these behave as before
when using native windows */
(gdk_window_has_impl (private) && gdk_window_has_impl (parent)))
{
GDK_WINDOW_IMPL_GET_IFACE (private->impl)->raise (window);
}
......@@ -6203,7 +6230,13 @@ gdk_window_lower_internal (GdkWindow *window)
/* Just do native lower for toplevels */
if (private->parent == NULL ||
private->parent->window_type == GDK_WINDOW_ROOT)
private->parent->window_type == GDK_WINDOW_ROOT ||
/* The restack_under codepath should work correctly even if the parent
is native, but it relies on the order of ->children to be correct,
and some apps like SWT reorder the x windows without gdks knowledge,
so we use lower directly in order to make these behave as before
when using native windows */
(gdk_window_has_impl (private) && gdk_window_has_impl (parent)))
{
GDK_WINDOW_IMPL_GET_IFACE (private->impl)->lower (window);
}
......@@ -7244,7 +7277,8 @@ gdk_window_set_cursor (GdkWindow *window,
if (cursor)
private->cursor = gdk_cursor_ref (cursor);
if (private->window_type == GDK_WINDOW_ROOT ||
if (_gdk_native_windows ||
private->window_type == GDK_WINDOW_ROOT ||
private->window_type == GDK_WINDOW_FOREIGN)
GDK_WINDOW_IMPL_GET_IFACE (private->impl)->set_cursor (window, cursor);
else if (_gdk_window_event_parent_of (window, display->pointer_info.window_under_pointer))
......@@ -9005,6 +9039,11 @@ _gdk_display_set_window_under_pointer (GdkDisplay *display,
{
GdkWindowObject *private;
/* We don't track this if all native, and it can cause issues
with the update_cursor call below */
if (_gdk_native_windows)
return;
private = (GdkWindowObject *)window;
if (display->pointer_info.window_under_pointer)
......@@ -9073,6 +9112,9 @@ gdk_pointer_grab (GdkWindow * window,
!gdk_window_is_viewable (window))
return GDK_GRAB_NOT_VIEWABLE;
if (_gdk_native_windows)
native = window;
else
native = gdk_window_get_toplevel (window);
while (gdk_window_is_offscreen ((GdkWindowObject *)native))
{
......@@ -9178,6 +9220,9 @@ _gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window)
GdkWindow *toplevel;
GdkWindowObject *toplevel_priv;
if (_gdk_native_windows)
return; /* We use the native crossing events if all native */
display = gdk_drawable_get_display (changed_window);
toplevel = get_event_toplevel (changed_window);
......@@ -9650,6 +9695,42 @@ _gdk_windowing_got_event (GdkDisplay *display,
if (!event_window)
return;
if (_gdk_native_windows)
{
if (event->type == GDK_BUTTON_PRESS &&
_gdk_display_has_pointer_grab (display, serial) == NULL)
{
_gdk_display_add_pointer_grab (display,
event_window,
event_window,
FALSE,
gdk_window_get_events (event_window),
serial,
gdk_event_get_time (event),
TRUE);
_gdk_display_pointer_grab_update (display,
serial);
}
if (event->type == GDK_BUTTON_RELEASE)
{
button_release_grab =
_gdk_display_has_pointer_grab (display, serial);
if (button_release_grab &&
button_release_grab->implicit &&
(event->button.state & GDK_ANY_BUTTON_MASK & ~(GDK_BUTTON1_MASK << (event->button.button - 1))) == 0)
{
button_release_grab->serial_end = serial;
button_release_grab->implicit_ungrab = TRUE;
_gdk_display_pointer_grab_update (display, serial);
}
}
if (event->type == GDK_BUTTON_PRESS)
_gdk_event_button_generate (display, event);
return;
}
event_private = GDK_WINDOW_OBJECT (event_window);
#ifdef DEBUG_WINDOW_PRINTING
......
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